*{margin: 0;padding: 0;list-style-type: none;text-decoration: none;}
.div1{width:640px;height:460px;border:2px solid #000;position: relative;}
.div2{width:640px;height:360px;cursor: pointer;position: relative;}
.move{width:320px;height: 180px;opacity: 0.3;background: #fff;position: absolute;left: 0;top:0;display: none;}
.div3{width: 640px;height: 100px;position: relative;overflow: hidden;}
img{width: 100%;height: 100%;}
ul{width:1280px;height:100px;margin-left: 20px;position:absolute;left:0;}
li{width:140px;height: 90px;float:left;margin:5px;cursor: pointer;}
.select{margin:0;border:#f00 5px solid;}
a{height: 100px;width: 20px;text-align: center;line-height: 100px;background: #000;color:#fff;}
.left{position: absolute;left: 0;}
.right{position: absolute;right:0;}
.div4{width:600px;height: 600px;overflow: hidden;position: absolute;top:0;left: 720px;display: none;}
.div4 img{width:1600px;height: 900px;position: absolute;left:0;top: 0;}
